// SCAN REPORT

JSON Filter MCP

3 tools. 0 can modify or destroy data without limits.

Read-only server. Low risk, but rate limits prevent runaway API costs.

Last updated: 11 Jun 2026

0 can modify or destroy data

3 read-only

3 tools total

Community server · catalogue entry verified 11/06/2026

How to control JSON Filter MCP ↓

TOOL MAP

What JSON Filter MCP exposes to your agents

Read (3) Write / Execute (0) Destructive / Financial (0)

Running more than one server? Check your whole stack →

THE RISK

What can go wrong

Even read-only tools carry cost. An agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up bills.

POLICY

How to control JSON Filter MCP

PolicyLayer is an MCP gateway — it sits between your AI agents and JSON Filter MCP, and nothing reaches the server without passing your rules. These are the rules we recommend:

Cap read operations

{
  "json_dry_run": {
    "limits": [
      {
        "counter": "json_dry_run_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register JSON Filter MCP — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON JSON FILTER →

Free to start. No card required.

FULL CATALOGUE

All 3 JSON Filter MCP tools

READ 3 tools

Read json_dry_run Analyze the size breakdown of JSON data using a shape object to determine granularity. Returns size informatio Read json_filter Filter JSON data using a shape object to extract only the fields you want. Provide filePath (local file or HTT Read json_schema Generate TypeScript schema for a JSON file or remote JSON URL. Provide the file path or HTTP/HTTPS URL as the

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about JSON Filter MCP

Is the JSON Filter MCP server safe to use without restrictions? +

The JSON Filter MCP server is primarily read-only with 3 read tools. While it cannot modify data, an agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up costs. Rate limiting is still recommended.

How many tools does the JSON Filter MCP server expose? +

3 tools across 1 categories: Execute. 3 are read-only. 0 can modify, create, or delete data.

How do I enforce a policy on JSON Filter MCP? +

Register the JSON Filter MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every JSON Filter MCP tool call.

Deterministic rules across all 3 JSON Filter MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON JSON FILTER →

Free to start. No card required.

3 JSON Filter MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.